Insulator.



T. J. HEARD.

INSULATOR.

APPLICATION FILED MAY 15. 1918.

THOMAS J. HEARD, OF WILSON, KANSAS.

INSULATOR.

Application filed May 15, 1918.

To all whom it may concern:

Be it known that I, THOMAS J. HEARD a citizen of the United States,residing at wir son, in the county of Ellsworth and State of Kansas,have invented certain new and useful Improvementsin Insulators, of whichthe following is a specification, reference being had to theaccompanying drawings.

This invention relates to insulators such as are commonly employed forattaching telegraph and telephone wires to the arms of supporting polesor masts.

The present invention has for its primary object to provide an insulatorof the above character which is of such construction that the wire maybe easily, quickly and securely attached to the insulator or removedtherefrom.

It is a more particular object of the in-v vention to provide aninsulator having a body of porcelain, glass. or other suitable in-'sulating material, and a laterally directed wing or flange projectingfrom one side of said body and having means therein to receive the wire,whereby the necessity of wrapping or winding the wire about the body ofthe insulator may be obviated.

It is also a further general object of my invention to provide aninsulator which is simple and durable in its construction, highlyserviceable and convenient for the purpose in view, and which may bemanufactured at comparatively small cost.

With the above and other objects in view, the invention consists in theimproved construction and arrangement of the several parts as will behereinafter more fully described, subsequently claimed and illustratedinthe accompanying drawing, in which similar reference charactersdesignate corresponding parts throughout the several views, and whereinFigure 1 is a vertical sectional view through the insulator showing thesame mounted upon the pin fixed in the supporting arm; and

Fig. 2 is a perspective view of the insulator.

Referring in detail to the drawing, A designates one of the arms of atelephone or telegraph pole, in which one or more vertically disposedpins P are securely fixed in any preferred manner, said pins graduallydecreasing in diameter, or tapering toward their upper ends.

My improved insulator, which constitutes Specification of LettersPatent.

Patented May 6, 1919.

Serial No. 234,627.

the subject matter of the present invention, includes a body 5 offrust-o-conical form, said body being constructed of porcelain, glass orother suitable insulating or nonconducting material. This body 5 has atapering bore to receive a pin P and is retained upon said pin by a nutor other suitable clamping means engaged upon the upper end of the pin.

The body 5 of the insulator is formed at one side thereof with alaterally projecting flange or wing 6 of triangular shape, the end edgeof the triangular flange extending horizontally from the smaller end ofthe insulator body. The outer side edge 7 of the flange 6 inclinesdownwardly and inwardly to the base edge of the body 5.

In the wing or flange 6 of the insulator, a slot 8 of inverted U-shapedform is provided, the entrance end 9 of said slot opening upon theinclined edge 7 of the flange 6. The other end 10 of the slot 8 islocated adjacent the side wall of the insulator body 5 and above and inline with the base edge of said body. In this end of the slot 8, thecurrent conducting wire W is adapted to be seated. It will thus be seenthat the wire engages the flange or wing 6 at a point adjacent the bodywall of the insulator and comparatively remote from the outer inclinededge 7 of said flange. Thus there is little liability of breaking offthe portion of the flange 6 between the spaced arms of the slot 8 bypressure or strain of the wire upon said wing at the inner end of theslot. From the foregoing description, taken in connection with theaccompanying drawing, the construction and several advantages of myimproved insulator will be readily understood. The current conductingwire can be readily engaged in the entrance end of the slot 8 and movedupwardly and then inwardly and downwardly and seated in the end 10 ofsaid slot. The wire can also be as readily disengaged from said slot anddisconnected from the insulator. The insu lator can be readily moldedand produced in large quantities at comparatively small cost. The devicecan, of course, be made in various sizes and employed in electric wiringinstallations other than that above referred to.

While I have herein shown and described the preferred form andconstruction of the several parts of the device, it is to be understoodthat the same are susceptible of considerable modification and I,therefore, re-

serve the privilege of adopting all snch legitimate changes as may befairly embodied Within the spirit and scope of the invention as claimed.7

Having thus described my invention, What I claim is An'insulatorcomprising a frusto-conical body, a triangular-shaped ifiange integralwith and projecting laterally from one side of said body, the end edgeof said flange extending from the smaller end of theins11- latorbody'and the outer inclined edgevof the flange converging toward thelarger end of thebody, said flange havingan in- 3 verted U-shaped slotformed therein openand the other end of said slot terminating adjacentthe body Wall of the insulator at a point comparatively .remote fromsaid inclined edge. a In testnnony whereof I hereunto aflix my signaturein the presence of twowltnesses.

' THOMAS HEARD.

WVitnesses ANTHONY F. SOMER, DANIEL KELLER.

Copies;otzthil ;patcgt,mgyibeiqbtained-191% flyeecents each,,l3y-.a.ddressi:ng the Commissioner of Iatents,

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